<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>博客列表</title>
    <link rel="stylesheet" href="css/list.css">
    <link rel="stylesheet" href="css/blog_list.css">
    <style>
        .nav{
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 50px;
        }
        .container{
            padding-top: 80px;
            height: auto;
        }
        .container-right{
            width: auto;
        }
        .blog-pagnation-wrapper{
            height: 40px;
            margin: 16px 0;
            text-align: center;
        }
        .blog-pagnation-item{
            display: inline-block;
            padding: 8px;
            border: 1px solid #d0d0d5;
            color: #333;
        }
        .blog-pagnation-item:hover{
            background: #4e4eeb;
            color: #fff;
        }
        .blog-pagnation-item.actvie{
            background: #4e4eeb;
            color: #fff;
        }
    </style>
    <script src="js/jquery.min.js"></script>
    <script src="js/urltools.js"></script>
    <script src="js/logout.js"></script>
</head>

<body>
<!-- 导航栏 -->
<div class="nav">
    <img src="img/logo2.jpg" alt>
    <span class="title">blog分享站</span>
    <!-- 用来占据中间位置 -->
    <span class="spacer"></span>
<!--    <a href="login.html">登陆</a>-->
    <a href="blog_add.html">写博客</a>
    <a href="myblog_list.html">我的博客</a>
    <a href="javascript:logout()">注销</a>

</div>
<!-- 版心 -->
<div class="container">
    <!-- 右侧内容详情 -->
    <div class="container-right" style="width: 100%;">
        <div id="artlist">
        </div>
        <hr>
        <div id="pageDiv" class="blog-pagnation-wrapper">
            <button class="blog-pagnation-item" onclick="doFirst()">首页</button>
            <button class="blog-pagnation-item" onclick="doPre()">上一页</button>
            <button class="blog-pagnation-item" onclick="doNext()">下一页</button>
            <button class="blog-pagnation-item" onclick="doLast()">末页</button>
        </div>
    </div>
</div>
<script>
    var pageIndex=1; // 当前页码（从1开始）
    var pageSize=2; // 每页显示最大条数
    var pageCount=1; // 总页数
    // 初始化参数
    function pageInit(){
        var paramPageIndex = getParamByKey("pageIndex");
        var paramPageSize = getParamByKey("pageSize");
        if(paramPageIndex!=null){
            pageIndex = paramPageIndex;
        }
        if(paramPageSize!=null){
            pageSize = paramPageSize;
        }
        doAjax();
    }
    pageInit();
    // 点击首页
    function doFirst(){
        if(pageIndex<=1){
            alert("抱歉：不能跳转啦，当前已经在首页！");
            return false;
        }
        pageIndex=1;
        location.href = "blog_list.html?pageIndex="+pageIndex+"&pageSize="+pageSize;
    }
    // 点击“上一页”
    function doPre(){
        if(pageIndex<=1){
            alert("抱歉：不能跳转啦，当前已经在首页！");
            return false;
        }
        --pageIndex;
        location.href = "blog_list.html?pageIndex="+pageIndex+"&pageSize="+pageSize;
    }
    // 点击“下一页”
    function doNext(){
        if(pageIndex>=pageCount){
            alert("抱歉：您已经在末页了，无需跳转！");
            return false;
        }
        ++pageIndex;
        location.href = "blog_list.html?pageIndex="+pageIndex+"&pageSize="+pageSize;
    }
    // 点击“末页”
    function doLast(){
        if(pageIndex>=pageCount){
            alert("抱歉：您已经在末页了，无需跳转！");
            return false;
        }
        location.href = "blog_list.html?pageIndex="+pageCount+"&pageSize="+pageSize;
    }
    // 请求后端，得到数据并展示列表
    function doAjax(){
        // 1.得到当前页面的文章列表数据
        jQuery.ajax({
            url:"/art/getlistbypage",
            type:"POST",
            data:{
                "pageIndex":pageIndex,
                "pageSize":pageSize
            },
            success:function(res){
                if(res.code==200 && res.data.length>0){
                    // 从后端查询到数据，进行列表拼接和展示
                    var artListHtml="";
                    for(var i=0;i<res.data.length;i++){
                        var item = res.data[i];
                        artListHtml +='<div class="blog">';
                        artListHtml +='<div class="title">'+item.title+'</div>';
                        artListHtml +='<div class="date">'+item.createtime+'</div>';
                        artListHtml +='<div class="desc">'+item.content+'</div>';
                        artListHtml +='<a href="blog_content.html?id='+item.id+'" class="detail">查看全文&gt;&gt;</a>';
                        artListHtml +='</div>';
                    }
                    jQuery("#artlist").html(artListHtml);
                    jQuery("#pageDiv").show();
                }else{
                    jQuery("#pageDiv").hide();
                    jQuery("#artlist").html("<h2 style='margin-left:20px;margin-top:10px;'>暂无文章！</h2>");
                }
            }
        });
        // 2.查询文章的总条数 -> 得出当前总页数
        jQuery.ajax({
            url:"/art/getcount",
            type:"POST",
            data:{},
            success:function(res){
                if(res.code==200 && res.data>0){
                    // 计算总页数
                    pageCount = Math.ceil(res.data/pageSize);
                }
            }
        });
    }
</script>
</body>
</html>